@Blind4Basics Thank you so much! This is very helpful!

hi,

K4[ON(SO3)2]2 -> K4[ONS2O6]2 -> K4[NS2O7]2 -> K4N2S4O14

Can someone please help me understand how the calculation works in this kata? For example in one of the test case O in "K4[ON(SO3)2]2") is 14 as shown here {'K': 4, 'O': 14, 'N': 2, 'S': 4} and N is 2. K makes sense, and S does too. Thank you.

I wish the it was descriptive enough, and have more test cases in Javascript to give us an idea of what to expect.

Hi @TheOriginalTripleD can you pls explain how the "int and int" and "int or int" works? Perhaps any document? Thank you very much for summarizing the solution, very helpful to understand.